Any Bradford newspaper for 19th and 20th century. The various Leeds papers only have a limited amount of Bradford news
Another vote for the Bradford Observer into the 20th century
Steve Lightfoot commented
hardly anything on Bradford from 1875 onwards. Come on guys Bradford was one of the most important towns in the Victorian Era
Tony Woods commented
The Bradford Observer is on the site for 1834-1875. Digitising the rest of it would be great.